Abstract Lab 1

Topics: Root mean square, Hertz, Wavelength Pages: 2 (525 words) Published: February 7, 2013
The overall objective of this lab was to a digital oscilloscope to measure various signals. The goal of Part 1 was to measure the mean value, the frequency, peak to peak voltage, and the RMS voltage of a triangular input signal. To meet this goal, a function generator was used to generate a 1 kHz triangular wave signal with a 1 V amplitude, and the oscilloscope was used to measure the values of that signal. Using the oscilloscope, the mean value was found to be -37.6 mV, the RMS Voltage was 292 mV, the frequency was 1 kHz and the Peak to Peak voltage was 1.01 V. The values observed, differed from what was expected as a result of the inaccuracy to output perfect values. The triangular wave was then given a non-zero DC Offset. The latter change displaced the triangular signal vertically by keeping its initial frequency and Peak to Peak values. Another goal of Part 1 was to determine how AC and DC coupling affects the input signal. This was determined by toggling the input channel from DC to AC coupling. The latter resulted in a vertical shift that filters the DC Offset so that the signal centers vertically on the 0 axis. Part 2 of the lab was to measure the response of an amplifier. To meet this goal, a DC Power supply generated a signal to an amplifier which was measured and compared to the direct DC signal by the oscilloscope. The output of the power supply was varied from -12 V to +12 V in increments of 2V and the direct signal was compared to the amplified signal. It was observed that from an input signal of -12 V to -4 V, the output signal was somewhat constant around -0.750 V. From -4 V to +6 V, the output linearly increased by a factor of K = 1.54, then leveled off to 11.4 V with the inputs from +6 V to +12 V. At the constant outputs, the voltage is said to be saturated, which means that the input does not affect the output. A second goal of Part 2 was to find the resonance frequency of the amplifier. This was done by keeping the function...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Lab 1 labpaq Essay
  • Sample Abstract Lab 1 Essay
  • Lab Abstract 1 Essay
  • Science Lab ph 1 IP Essay
  • LAB 1 Essay
  • Lab 1 Essay
  • Essay about Lab 1
  • Essay about Lab 1

Become a StudyMode Member

Sign Up - It's Free